How Peanuts are Grown

Last year, Texas farmers grew over 489 million pounds of delicious peanuts. The peanuts grown in Texas are found in a lot of your favorite foods. In fact, there are hundreds of uses for peanuts and peanut oil. Below you can read about how peanuts are grown.

Despite having “nut” in its name – peanuts are NOT actually nuts at all, they’re legumes!

How_peanuts_are_ grown_fieldPeanut seeds (kernels) grow into a green oval-leafed plant about 18 inches tall. This plant develops yellow flowers around its lower portion. The flowers pollinate and then lose their petals as the fertilized ovary begins to enlarge. The budding ovary or “peg” grows down, away from the plant, extending into the soil. The peanut embryo turns horizontal to the soil surface and begins to mature, taking the form of the peanut. From planting to harvesting, the growing cycle takes four to five months, depending on the type or variety of peanut.


Planting Peanuts

How_peanuts_are_ grown_plantingPeanuts are planted late in the spring, when there is no risk of frost. This is usually in April or May when the soil temperatures reach 65-70 degrees Fahrenheit. Seeds are planted 1.5- to 2-inches deep, and about 2- to 4-inches apart. The row spacing is largely determined by the type of planting and harvest equipment the farmer uses.


Harvesting Peanuts

When the peanut plant has matured, it’s time for the farmer to harvest the crop. In Texas, this is usually in October or November. This time frame can vary based on the variety and line of peanut planted, and its individual maturation rate.

There are two steps required to harvest peanuts: digging and thrashing.

Digging

How_peanuts_are_ grown_harvestingWhen approximately 70 percent of a farmer’s crop is mature and an optimum soil moisture level is reached, farmers must dig the plant out of the ground. The farmer’s equipment will gently loosen the plant, lift it from the soil, shake the soil from the peanut pods, and invert the plant – exposing the pods to the sun. The farmer then leaves the crop to dry in the sun for several days.

Thrashing

How_peanuts_are_ grown_combineOnce the peanuts have had the opportunity to dry, the farmer comes back and harvests the crop with a peanut combine, commonly known as a thrasher. The thrasher separates the peanut pods from the vines, and places the pods into a hopper.

Some operations then place the freshly harvested peanut pods in drying wagons for further curing – this reduces moisture content to 8-10 percent.

Once the curing process is complete, the peanut crop is taken to the shelling facility.


Processing Peanuts

Upon its arrival to the shelling facility, the farmer’s stock peanuts (harvested peanuts that haven’t been shelled, cleaned or crushed) are inspected and graded to determine quality and value.

The peanuts then move through the shelling process where they are cleaned, de-hulled and sorted.

Peanuts grown for in-shell use (usually Virginias and Valencias) are sorted by size and stems are removed, and then they are further screened for quality so only the most mature, brightest pods remain for consumer use.